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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 23 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121374
Prefixes after maximum aggregation: 77228
Unique aggregates announced to Internet: 57860
Total ASes present in the Internet Routing Table: 14677
Origin-only ASes present in the Internet Routing Table: 12746
Origin ASes announcing only one prefix: 5744
Transit ASes present in the Internet Routing Table: 1931
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 16
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 22
Number of addresses announced to Internet: 1197702973
Equivalent to 71 /8s, 99 /16s and 127 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 58.2
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 56731
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20286
Total APNIC prefixes after maximum aggregation: 11911
Prefixes being announced from the APNIC address blocks: 18871
Unique aggregates announced from the APNIC address blocks: 11633
APNIC Region origin ASes present in the Internet Routing Table: 1732
APNIC Region origin ASes announcing only one prefix: 514
APNIC Region transit ASes present in the Internet Routing Table: 295
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 106344096
Equivalent to 6 /8s, 86 /16s and 174 /24s
Percentage of available APNIC address space announced: 56.4
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74772
Total ARIN prefixes after maximum aggregation: 47602
Prefixes being announced from the ARIN address blocks: 53009
Unique aggregates announced from the ARIN address blocks: 16527
ARIN Region origin ASes present in the Internet Routing Table: 8177
ARIN Region origin ASes announcing only one prefix: 2760
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187375808
Equivalent to 11 /8s, 43 /16s and 32 /24s
Percentage of available ARIN address space announced: 69.8
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153
3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466
7723 - 8191, 10240 - 12287, 13312 - 15359
16384 - 17407, 18432 - 20479, 21504 - 23551
25600 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 20999
Total RIPE prefixes after maximum aggregation: 15497
Prefixes being announced from the RIPE address blocks: 17550
Unique aggregates announced from the RIPE address blocks: 10990
RIPE Region origin ASes present in the Internet Routing Table: 4376
RIPE Region origin ASes announcing only one prefix: 2387
RIPE Region transit ASes present in the Internet Routing Table: 782
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 126164656
Equivalent to 7 /8s, 133 /16s and 30 /24s
Percentage of available RIPE address space announced: 75.2
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5302
Total LACNIC prefixes after maximum aggregation: 2218
Prefixes being announced from the LACNIC address blocks: 4643
Unique aggregates announced from the LACNIC address blocks: 3024
LACNIC Region origin ASes present in the Internet Routing Table: 329
LACNIC Region origin ASes announcing only one prefix: 83
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12041984
Equivalent to 0 /8s, 183 /16s and 191 /24s
Percentage of available LACNIC address space announced: 71.8
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1113 1135 815 Telstra Pty Ltd
703 409 368 318 UUNET
2907 394 1994 372 SINET Japan
17557 340 24 128 Pakistan Telecom
2764 326 340 293 connect.com.au pty ltd
7474 305 276 208 Optus Communications Pty Ltd
4134 304 2653 97 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 230 133 73 Videsh Sanchar Nigam Ltd. Aut
17676 229 3526 24 XTAGE CORPORATION
9583 219 33 13 Satyam Infoway Ltd.,
4766 206 2073 153 Korea Internet Exchange for "
9443 180 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 150 9 14 World Net & Services Co., Ltd
9238 131 8 18 TATA ISP
4716 129 737 123 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 128 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1590 8889 1148 UUNET Technologies, Inc.
7018 1430 7183 968 AT&T
3908 1223 1589 483 Supernet, Inc.
1239 970 3134 684 Sprint
1 670 8084 433 GENUITY
852 604 1107 445 Telus Advanced Communications
7046 577 827 244 UUNET Technologies, Inc.
7843 564 402 207 Adelphia Corp.
4323 531 473 169 Time Warner Communications, I
4151 528 691 58 USDA
209 526 2107 335 Qwest
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 484 113 6 Covad Communications
6197 479 555 114 BellSouth Network Solutions,
3561 466 2322 326 Cable & Wireless USA
376 462 375 111 Reseau Interordinateurs Scien
2386 443 471 236 AT&T Data Communications Serv
705 433 165 190 UUNET Technologies, Inc.
6198 432 193 200 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 788 2232 651 UUNET - Commercial IP service
3301 315 1143 303 TeliaNet Sweden
3215 312 818 171 France Telecom Transpac
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 217 369 198 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 160 69 95 BT Ignite European Backbone
8708 151 42 148 Romania Data Systems S.A.
20858 147 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 124 18 31 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 120 1299 110 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 358 101 Song Networks
3352 100 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 105 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 209 316 114 UniNet S.A. de C.V.
11172 161 82 33 Servicios Alestra S.A de C.V
6503 158 207 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 74 62 21 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
8065 70 6 23 Empresas Publicas de Medellin
4270 69 18 10 Red de Interconexion Universi
11992 69 7 30 Integrated Systems
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 Global One Colombia
11830 60 4 21 Instituto Costarricense de El
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1223 740 Supernet, Inc.
18566 484 478 Covad Communications
4151 528 470 USDA
7018 1430 462 AT&T
6197 479 365 BellSouth Network Solutions,
4323 531 362 Time Warner Communications, I
7843 564 357 Adelphia Corp.
376 462 351 Reseau Interordinateurs Scien
7046 577 333 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1113 298 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 970 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 433 243 UUNET Technologies, Inc.
7066 493 239 Virginia Polytechnic Institut
1 670 237 GENUITY
6198 432 232 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 66.205.199.0/24 25752 Neopolitan Networks
64513 PRIVATE 66.205.200.0/24 25752 Neopolitan Networks
64520 PRIVATE 158.15.0.0/16 721 DLA Systems Automati
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 2151 California State Uni
65520 PRIVATE 202.36.16.0/21 9889 Web InterNet, ISP
65520 PRIVATE 202.36.24.0/22 9889 Web InterNet, ISP
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:3 /10:8 /11:12 /12:45
/13:93 /14:238 /15:445 /16:7339 /17:1587 /18:2891
/19:8138 /20:8028 /21:5762 /22:8751 /23:10478 /24:66665
/25:168 /26:172 /27:102 /28:98 /29:61 /30:175
/31:2 /32:95
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 795 1223 Supernet, Inc.
7018 526 1430 AT&T
702 494 788 UUNET - Commercial IP service
18566 479 484 Covad Communications
701 451 1590 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 392 493 Virginia Polytechnic Institut
1239 363 970 Sprint
6197 354 479 BellSouth Network Solutions,
6198 340 432 BellSouth Network Solutions,
7843 334 564 Adelphia Corp.
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 280 577 UUNET Technologies, Inc.
6140 271 284 ImpSat
20115 271 396 Charter Communications
2386 240 443 AT&T Data Communications Serv
7303 239 240 Telecom Argentina Stet-France
3215 238 312 France Telecom Transpac
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:651 13:1 15:4 17:2 20:9 24:834
25:1 32:83 34:1 38:54 40:18 44:2
55:1 57:15 61:450 62:506 63:1903 64:1384
65:1885 66:1435 67:214 68:284 69:52 80:321
81:89 128:143 129:189 130:40 131:81 132:13
133:2 134:144 135:4 136:194 137:117 138:104
139:72 140:103 141:109 142:94 143:46 144:109
145:18 146:262 147:85 148:266 149:73 150:44
151:95 152:252 153:51 154:3 155:106 156:42
157:39 158:123 159:142 160:34 161:58 162:135
163:76 164:270 165:138 166:81 167:303 168:393
169:54 170:303 171:8 192:5281 193:2419 194:2006
195:953 196:458 198:3584 199:3206 200:2875 202:3624
203:5013 204:3006 205:2032 206:2403 207:2391 208:2689
209:2787 210:733 211:322 212:954 213:728 214:21
215:22 216:3205 217:593 218:77 219:14 220:52
End of report
